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How to explicitly discard an out argument?

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How can I pop-up a print dialog box using Javascript?

I have a page with a "Print" link that takes the user to a printer-friendly page. The client wants a print dialog box to appear automatically when the user arrives at the print-friendly page. How can I do this with javascript? ...
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How can I tell where mongoDB is storing data? (its not in the default /data/db!)

My host came with a mongodb instance and there is no /db directory so now I am wondering what I can do to find out where the data is actually being stored. ...
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MySQL dump by query

Is it possible to do mysqldump by single SQL query ? 9 Answers 9 ...
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What's Mongoose error Cast to ObjectId failed for value XXX at path “_id”?

When sending a request to /customers/41224d776a326fb40f000001 and a document with _id 41224d776a326fb40f000001 does not exist, doc is null and I'm returning a 404 : ...
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Ruby 2.0.0p0 IRB warning: “DL is deprecated, please use Fiddle”

I just uninstalled my older versions of Ruby, removed all of my gems (including Rails), and installed Ruby 2.0. In other words, a totally clean re-install. Upon starting IRB, I received this message: ...
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iOS app, programmatically get build version

Is there a way to programmatically get the build version of my app? I need to be able to detect when the user has updated the app through the AppStore, in order to execute some code for adjustments ...
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CSS Classes & SubClasses

Is it possible, other than what I'm doing because it doesn't seem to work, to do this? I want to be able to have subclasses that are under a class to use the CSS specifically for that class.subclass. ...
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Definitive way to trigger keypress events with jQuery

I've read all the answers on to this questions and none of the solutions seem to work. 10 Answers ...
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How to find the extension of a file in C#?

In my web application (asp.net,c#) I am uploading video file in a page but I want to upload only flv videos. How can I restrict when I upload other extension videos? ...